EP 3569750 A1 20191120 - SYSTEM AND METHOD OF UNSPOOLING A MATERIAL INTO A TEXTILE MACHINE
Title (en)
SYSTEM AND METHOD OF UNSPOOLING A MATERIAL INTO A TEXTILE MACHINE
Title (de)
SYSTEM UND VERFAHREN ZUR ENTSPULUNG EINES MATERIALS IN EINER TEXTILMASCHINE
Title (fr)
SYSTÈME ET PROCÉDÉ DE DÉBOBINAGE D'UN MATÉRIAU DANS UNE MACHINE TEXTILE
Publication
Application
Priority
- US 201862672519 P 20180516
- US 201916413405 A 20190515
Abstract (en)
An automated unspooling mechanism capable of dispensing of knitting material strands in a dynamically-controlled tension on a knitting machine. An unspooling device is configured to sense the tension of a strand fed to the knitting machine, and responsively adjust the strand deployment speed to avoid too little or too much strand dispensing without interrupting the knitting process. The unspooling device includes a variable motor drive that can rotate the strand package in various speeds, and a spring arm trigger that can sense the current tension of the dispensed material. The spring arm trigger can vary its arm position based on the sensed tension. The arm position is then processed and converted to a signal to vary the motor speed. Therefore, the deployment speed of the strands can be dynamically controlled based on a sensed tension of feeding the strand.
IPC 8 full level
D04B 15/50 (2006.01); D04B 15/44 (2006.01); D04B 27/12 (2006.01)
CPC (source: EP US)
B65H 49/20 (2013.01 - US); B65H 59/02 (2013.01 - US); B65H 59/04 (2013.01 - US); B65H 59/387 (2013.01 - US); D04B 15/40 (2013.01 - EP); D04B 15/44 (2013.01 - EP US); D04B 15/48 (2013.01 - US); D04B 15/99 (2013.01 - US); D04B 35/14 (2013.01 - EP); B65H 59/385 (2013.01 - US); D04B 15/46 (2013.01 - US)
Citation (search report)
- [XY] US 2018002133 A1 20180104 - STEWART TIFFANY A [US], et al
- [Y] EP 1298239 A1 20030402 - BARTES STADLER MIQUEL [ES]
- [XY] DE 4439907 A1 19960509 - LIBA MASCHF [DE]
- [A] EP 0061975 A1 19821006 - POURTIER PERE & FILS SOCIETE E [FR]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3569750 A1 20191120; EP 4339343 A2 20240320; EP 4339343 A3 20240424; US 11828009 B2 20231128; US 2019352816 A1 20191121
DOCDB simple family (application)
EP 19174903 A 20190516; EP 24155071 A 20190516; US 201916413405 A 20190515